Tripp Lite's SU80KTV (80kVA) SmartOnline Modular 3-Phase Intelligent, True On-Line UPS System provides 100% system availability with N+1 modular architecture and 1+1 parallel capability. In an N+1 configuration, the SU80KTV features four self-contained, redundant 20kVA power modules that can be hot-swapped (with the load powered) if maintenance is required.